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Python: --pyi_out emits ClassVar[int] at module scope for file-level extensions

python

untriagedauto added to all issues by default when created.auto added to all issues by default when created.

Status: Open.

Bug

#29221 In protocolbuffers/protobuf;

· folded opened on Aug 17, 2026

rust_proto_library fails in downstream Bzlmod builds due to relative resolution of //rust:use_upb_kernel

bug

rust

Status: Open.

#29090 In protocolbuffers/protobuf;

· anforowicz opened on Aug 9, 2026

2024 edition with nest_in_file_class = YES throws IllegalStateException when used in JUnit test

bug

java

Status: Open.

#29012 In protocolbuffers/protobuf;

· zbrtr opened on Aug 4, 2026

Python enum types are still annotated incorrectly

bug

python

Status: Open.

#29010 In protocolbuffers/protobuf;

· bcmills opened on Aug 4, 2026

C#: packed repeated uint32 lacks the preallocation present in the C++ codec

c#

feature request

Status: Open.

#28925 In protocolbuffers/protobuf;

· richardcocks opened on Jul 30, 2026

Feature request: option for JsonFormat.Printer to fail if unknown fields are encountered

feature request

json

Status: Open.

#28922 In protocolbuffers/protobuf;

· devinrsmith opened on Jul 30, 2026

Quadratic-time denial of service in text_format.Parse for recursive map fields

bug

python

Status: Open.

#28864 In protocolbuffers/protobuf;

· geo-chen opened on Jul 28, 2026

It seems there is a typo in C++ Arena Allocation Guide document.

feature request

Status: Open.

#28830 In protocolbuffers/protobuf;

· dyx2025 opened on Jul 27, 2026

upb parses float/double field defaults with locale-dependent strtod, breaking descriptor loading under a comma-decimal LC_NUMERIC

Status: Open.

#28796 In protocolbuffers/protobuf;

· dxqb opened on Jul 24, 2026

_message.pyd for Windows Python is missing NX and ASLR

38.x

bug

feature request

python

Status: Open.

#28688 In protocolbuffers/protobuf;

· EeroKurimo opened on Jul 20, 2026

[benchmark] Request for call-path / fairness review (GLD.SerializerBenchmark)

Status: Open.

#28661 In protocolbuffers/protobuf;

· leo-gan opened on Jul 17, 2026

[benchmark] Request for call-path / fairness review (GLD.SerializerBenchmark)

Status: Open.

#28660 In protocolbuffers/protobuf;

· leo-gan opened on Jul 17, 2026